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Updated: Jul 14, 2025

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Post-Movie Subliminal Measurement PMSM, for Investigating Implicit Social Bias
Published on: February 29, 2020
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Timing is everything: Developmental changes in the associations between intergroup contact and bias.
Christine E Merrilees1, Laura K Taylor2, Madeline Klotz3
1The State University of New York at Geneseo, USA.
International Journal of Behavioral Development
|October 6, 2023
Summary
Intergroup contact quality, not frequency, influences youth bias development in conflict zones. As children age, positive contact experiences increasingly reduce prejudice, offering insights for peacebuilding interventions.
Area of Science:
- Social Psychology
- Developmental Psychology
- Conflict Studies
Background:
- Understanding intergroup relations is vital for conflict resolution and prejudice reduction.
- Developmental trajectories of contact and bias are understudied in conflict-affected youth.
- Belfast, Northern Ireland, provides a unique setting to examine these dynamics.
Purpose of the Study:
- To investigate age-based changes in the relationship between intergroup contact and bias among youth.
- To analyze how contact frequency and quality differentially impact bias over time.
- To explore group differences (Catholic vs. Protestant) in these developmental patterns.
Main Methods:
- Time-varying effects modeling (TVEM) was employed to analyze longitudinal data.
- The study included 667 youth from Belfast, Northern Ireland (mean age 15.74).
- Data focused on intergroup contact (frequency and quality) and levels of bias.
Main Results:
- Contact frequency showed no significant change in its relation to bias over time.
- The association between contact quality and bias strengthened significantly between ages 10-14, then plateaued.
- Distinct patterns emerged between Catholic and Protestant youth.
Conclusions:
- Contact quality is a critical factor in mitigating bias during adolescence in conflict settings.
- Interventions should focus on enhancing the quality of intergroup contact for youth.
- Findings inform strategies for promoting positive intergroup relations in divided communities.
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